What is this vine?

rhondals_2006(6B)May 7, 2014

I would love to know what this vine is. it has came up for years by an old building in our town. I always liked it. It doesn't seem to be invasive since it's been there for YEARS and hasn't covered the lot. It vines up the old building. Any ideas would be appreciated.
I would be interested in it if I knew it wasn't poison of some sort. Thank You

It might not be invasive but it sure is hard to get rid of. I've been pulling it up for 6 years and it shows no signs of slowing. It spreads via rhizome, and unless you get the entire thing out in one go, any remaining root will become a new plant. Any part of the vine that touches the ground will form new roots there. Before you plant it, check out the old building where you admired it. It's possible that there is concrete or some kind of barrier that prevents the rhizomes from spreading.

For what it's worth, this plant also causes some skin irritation for me, like a mild poison ivy reaction. I'm not allergic to poison ivy, though. Go figure.

We had some of this around our house. I pulled it out every year with impunity for 12 years, with my bare hands. No problems. The next year, I pulled it out as usual. And had the worst allergic reaction of my life. I've never even been allergic to poison ivy! After a few rounds of Roundup Poison Ivy killer (which only worked sporadically), I put rock salt on it. Worked like a charm. I haven't had anymore pop up since then (knock on wood).